Supposing that what the writer said is true:
- 2 people had a one night stand and did not use protection
neither man nor woman has the moral high ground on this one. Both did it and both have to live with the consequences
if the writer wanted a relationship, she certainly did not go about it the right way (not that having sex on the first date is wrong)
- Woman becomes pregnant and does not inform the father
sorry, woman is wrong, wrong, wrong. The father has a right to know that he has a child, the child has the right to have a father. She does not have the right to hide this from both
also, no one has the obligation to call a one night stand to ask her if she became pregnant (talk about awkward!) or to have a relationship with the person afterwards